He also notes that researchers are studying other factors that could affect bee populations. These include parasites, diseases and stress caused by transporting beehives to farms.他还提到,研究人员正在研究其他可能会影响蜜蜂数量的原因,诸如寄生虫、疾病,以及把蜂巢运到农场所产生的压力。
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